How to sync Portworx volume

Hi All

I have a four worker node kubernetes cluster and may add some more nodes as Portworx volume but I find that the Volume amount is different among nodes.

Below is the /opt/pwx/bin/pxctl status:
IP ID SchedulerNodeName Auth StorageNode Used Capacity Status StorageStatus Version Kernel OS
Disabled Yes 14 GiB 120 GiB Online Up 2.8.0.0-1ef62f8 5.4.0-90-generic Ubuntu 20.04.3 LTS
Disabled Yes 37 GiB 120 GiB Online Up 2.8.0.0-1ef62f8 5.4.0-90-generic Ubuntu 20.04.2 LTS
Disabled Yes 37 GiB 120 GiB Online Up 2.8.0.0-1ef62f8 5.4.0-90-generic Ubuntu 20.04.2 LTS
Disabled Yes 8.0 GiB 120 GiB Online Up (This node) 2.8.0.0-1ef62f8 5.4.0-90-generic Ubuntu 20.04.3 LTS
Global Storage Pool
Total Used : 96 GiB
Total Capacity : 480 GiB

It may affects which service the pod build on. Could give me some tips on how to sync across volume? Like every node should be 37GiB in this case.

Thanks in advance.